SAN FRANCISCO - A California federal magistrate judge on July 21 granted preliminary approval of a $504,000 settlement to end a wage class complaint filed by employees of a spa franchise, but he cautioned that prior to final approval, the parties must either explain why he erred in calculating the maximum recovery to be more than $6 million or why such a low recovery was warranted (Yvette R. Balderas, et al. v. Massage Envy Franchising, LLC, No. 12-6327, N.D. Calif.; 2014 U.S. Dist. LEXIS 99966).